UPSC MainsBOTANY-PAPER-II201310 Marks
Q18.

A species is added to the Red Data Book.

How to Approach

This question requires a detailed understanding of the Red Data Book, its purpose, the criteria for listing species, and the implications of a species being added to it. The answer should cover the IUCN's role, different categories of threat, and conservation efforts triggered by such listings. Structure the answer by defining the Red Data Book, explaining the listing process, detailing the implications, and concluding with the importance of conservation.

Model Answer

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Introduction

The Red Data Book, officially known as the IUCN Red List of Threatened Species, is a critical inventory of the global conservation status of biological species. It’s a vital tool for prioritizing and informing conservation actions. Recently, several species, including certain migratory birds and freshwater fish, have been added to the Red List, highlighting the escalating biodiversity crisis. The inclusion of a species signifies a significant decline in its population and an increased risk of extinction, necessitating urgent conservation measures. Understanding the implications of this addition is crucial for effective environmental management and policy formulation.

What is the Red Data Book/IUCN Red List?

The IUCN Red List is maintained by the International Union for Conservation of Nature (IUCN). It assesses the extinction risk of thousands of plant and animal species. It’s not a single physical book anymore, but a continuously updated online database. The primary goal is to identify species in need of conservation.

The Listing Process & Categories

Species are assessed against a set of criteria developed by the IUCN. These criteria are based on factors like population size, rate of decline, geographic range, and probability of extinction. The assessment process involves scientists and experts from around the world. Based on the assessment, species are assigned to one of nine categories:

  • Extinct (EX): No known living individuals.
  • Extinct in the Wild (EW): Known only to survive in captivity or cultivation.
  • Critically Endangered (CR): Facing an extremely high risk of extinction in the wild.
  • Endangered (EN): Facing a very high risk of extinction in the wild.
  • Vulnerable (VU): Facing a high risk of extinction in the wild.
  • Near Threatened (NT): Likely to become endangered in the near future.
  • Least Concern (LC): Species with stable populations and no immediate threat.
  • Data Deficient (DD): Insufficient information to assess the risk of extinction.
  • Not Evaluated (NE): Species that have not yet been assessed.

Implications of Adding a Species to the Red Data Book

1. Increased Conservation Attention & Funding:

Listing a species triggers increased attention from conservation organizations, governments, and the public. This often leads to increased funding for research and conservation programs specifically targeted at that species.

2. Legal Protection:

In many countries, listing on the Red List can lead to legal protection under national environmental laws. For example, species listed as Endangered or Critically Endangered may be protected from hunting, poaching, and habitat destruction. The Convention on International Trade in Endangered Species (CITES) also uses the Red List to regulate international trade in threatened species.

3. Habitat Protection & Restoration:

Listing can prompt the designation of critical habitats as protected areas or the implementation of habitat restoration projects. This is particularly important for species with limited ranges or specialized habitat requirements.

4. Species-Specific Action Plans:

The IUCN and other organizations often develop species-specific action plans outlining the steps needed to recover the population. These plans may include captive breeding programs, reintroduction efforts, and community-based conservation initiatives.

5. Policy Changes:

The Red List data can inform policy decisions related to land use, resource management, and environmental regulations. It can also be used to assess the environmental impact of development projects.

Examples of Species Recently Added & Their Challenges

Amur Leopard (Critically Endangered): Facing threats from poaching, habitat loss due to logging and agriculture, and prey depletion. Conservation efforts include anti-poaching patrols and habitat restoration.

Vaquita (Critically Endangered): A small porpoise endemic to the Gulf of California, threatened by entanglement in gillnets used for illegal fishing of totoaba. Despite conservation efforts, its population continues to decline.

African Forest Elephant (Critically Endangered): Facing severe poaching for ivory and habitat loss. Conservation efforts focus on anti-poaching measures and community engagement.

Species IUCN Category (as of 2023) Primary Threats Conservation Efforts
Amur Leopard Critically Endangered Poaching, Habitat Loss Anti-Poaching, Habitat Restoration
Vaquita Critically Endangered Gillnet Entanglement Gillnet Ban, Enforcement
African Forest Elephant Critically Endangered Poaching, Habitat Loss Anti-Poaching, Community Engagement

Conclusion

The addition of a species to the Red Data Book is a stark warning about the state of global biodiversity. It signifies not just the decline of a single species, but also the degradation of ecosystems and the loss of vital ecological services. Effective conservation requires a multi-faceted approach, including habitat protection, anti-poaching measures, sustainable resource management, and international cooperation. Continued monitoring, research, and public awareness are essential to prevent further extinctions and safeguard the planet’s biodiversity for future generations.

Answer Length

This is a comprehensive model answer for learning purposes and may exceed the word limit. In the exam, always adhere to the prescribed word count.

Additional Resources

Key Definitions

IUCN Red List Criteria
A set of precise criteria used to evaluate the extinction risk of species, based on factors like population size, range, and rate of decline. These criteria are regularly updated.
Habitat Fragmentation
The process by which a continuous habitat is broken into smaller, isolated patches, often due to human activities like deforestation and urbanization. This can lead to reduced genetic diversity and increased extinction risk.

Key Statistics

As of November 2023, the IUCN Red List assesses 157,192 species, of which 43,109 are threatened with extinction. (Source: IUCN Red List website, accessed Nov 26, 2023)

Source: IUCN Red List website

According to the WWF Living Planet Report 2022, wildlife populations have declined by 69% on average since 1970. (Source: WWF Living Planet Report 2022)

Source: WWF Living Planet Report 2022

Examples

The California Condor Recovery Program

The California Condor was listed as Critically Endangered and nearly went extinct in the 1980s. A captive breeding program was initiated, and condors were reintroduced into the wild. This program is considered a major conservation success story, although the species remains vulnerable.

Frequently Asked Questions

What is the difference between 'Endangered' and 'Critically Endangered'?

Both categories indicate a high risk of extinction, but 'Critically Endangered' signifies a significantly higher risk. A species is considered Critically Endangered when it meets stricter criteria, such as a 90% probability of extinction in the wild within three generations.

Topics Covered

EcologyEnvironmentConservation BiologyBiodiversityEndangered Species